@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&family=Barlow:wght@300;400;500;600&display=swap');

/* ── Theme tokens ─────────────────────────────────────────────────────────── */

:root {
  /* Dark (default) */
  --bg:          #0c0f0d;
  --bg2:         #111512;
  --surface:     #161a17;
  --border:      #222822;
  --border-hi:   #2e3830;
  --text:        #d8ddd9;
  --text-hi:     #eef1ee;
  --muted:       #7a8c80;
  --muted-hi:    #9aaf9f;
  --accent:      #4ecba8;
  --accent-dim:  #1e4a3a;
  --accent-glow: rgba(78,203,168,0.12);
  --accent-dark: #38a888;
  --mono:        'JetBrains Mono', monospace;
  --display:     'Rajdhani', sans-serif;
  --sans:        'Barlow', sans-serif;
  --radius:      4px;
  --nav-bg:      rgba(12,15,13,0.94);
}

[data-theme="light"] {
  --bg:          #f2f5f2;
  --bg2:         #eaefea;
  --surface:     #ffffff;
  --border:      #d4dbd4;
  --border-hi:   #b8c8b8;
  --text:        #1a221c;
  --text-hi:     #0d120e;
  --muted:       #5a6e5e;
  --muted-hi:    #3d5040;
  --accent:      #1f9e7c;
  --accent-dim:  #c8ede3;
  --accent-glow: rgba(31,158,124,0.10);
  --accent-dark: #177a5e;
  --nav-bg:      rgba(242,245,242,0.94);
}

/* ── Reset ────────────────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background 0.2s, color 0.2s;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout ───────────────────────────────────────────────────────────────── */

.container {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Nav ──────────────────────────────────────────────────────────────────── */

nav {
  border-bottom: 1px solid var(--border);
  padding: 1.1rem 0;
  position: sticky;
  top: 0;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  z-index: 100;
  transition: background 0.2s, border-color 0.2s;
}

nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-logo {
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-hi);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo-img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.nav-logo span { color: var(--accent); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 2rem;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.75rem;
}

nav ul a {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.15s;
}

nav ul a:hover { color: var(--text); text-decoration: none; }

/* ── Theme toggle ─────────────────────────────────────────────────────────── */

.theme-toggle {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0.3rem 0.55rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: border-color 0.15s, background 0.2s;
  flex-shrink: 0;
}

.theme-toggle:hover { border-color: var(--accent); }

.theme-toggle svg {
  width: 14px;
  height: 14px;
  fill: var(--muted);
  transition: fill 0.15s, opacity 0.15s;
}

.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }

[data-theme="light"] .theme-toggle .icon-sun  { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

/* ── Footer ───────────────────────────────────────────────────────────────── */

footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  margin-top: 6rem;
}

footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-left {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
}

.footer-right {
  display: flex;
  gap: 1.5rem;
}

.footer-right a {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  transition: color 0.15s;
}

.footer-right a:hover { color: var(--text); text-decoration: none; }

/* ── Buttons ──────────────────────────────────────────────────────────────── */

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: #0c0f0d;
  font-family: var(--display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius);
  transition: opacity 0.15s, box-shadow 0.15s;
  box-shadow: 0 0 0 0 var(--accent-glow);
}

.btn-primary:hover {
  opacity: 0.88;
  text-decoration: none;
  box-shadow: 0 0 18px 2px var(--accent-glow);
}

.btn-secondary {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted-hi);
  letter-spacing: 0.03em;
  transition: color 0.15s;
}

.btn-secondary:hover { color: var(--text); text-decoration: none; }

/* ── Hero ─────────────────────────────────────────────────────────────────── */

.hero {
  padding: 7rem 0 5rem;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -180px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 1.2rem;
  height: 1px;
  background: var(--accent);
}

.hero h1 {
  font-family: var(--display);
  font-size: clamp(2.6rem, 6.5vw, 4rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.05;
  margin-bottom: 1.5rem;
  max-width: 620px;
  color: var(--text-hi);
  text-transform: uppercase;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero p {
  font-size: 1rem;
  font-weight: 300;
  color: var(--text);
  max-width: 500px;
  line-height: 1.75;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  flex-wrap: wrap;
}

.platforms {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 3rem;
}

.platform-badge {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-hi);
  border: 1px solid var(--border-hi);
  padding: 0.25rem 0.65rem;
  border-radius: 2px;
  background: var(--surface);
}

/* ── Screenshot / Carousel ────────────────────────────────────────────────── */

.screenshot {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border);
}

.carousel-slides {
  position: relative;
  width: 100%;
  background: #0c0f0d;
  overflow: hidden;
  text-align: center;
}

.carousel-slide {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  max-width: 100%;
  height: auto;
  display: block;
  opacity: 0;
  transition: opacity 0.6s ease;
  pointer-events: none;
}

.carousel-slide.active {
  position: relative;
  left: auto;
  transform: none;
  opacity: 1;
  pointer-events: auto;
}

.carousel-caption {
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--text);
  line-height: 1.75;
  margin-top: 1.25rem;
  min-height: 3rem;
  transition: opacity 0.3s ease;
}

.carousel-dots {
  display: flex;
  gap: 0.5rem;
  margin-top: 1.25rem;
  justify-content: center;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border-hi);
  border-radius: 20px;
  padding: 0.5rem 1rem;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid var(--border-hi);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: background 0.2s, border-color 0.2s;
}

.carousel-dot.active {
  background: var(--accent);
  border-color: var(--accent);
}

.carousel-dot:hover:not(.active) {
  border-color: var(--muted-hi);
}

/* ── App frame ────────────────────────────────────────────────────────────── */

.app-frame {
  border: 1px solid var(--border-hi);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0,0,0,0.4);
  margin-bottom: 0;
}

.app-frame-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-frame-title {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  transition: opacity 0.3s;
}

.app-frame-controls {
  display: flex;
  gap: 0.4rem;
}

.app-frame-controls span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-hi);
  display: block;
}

/* ── Features ─────────────────────────────────────────────────────────────── */

.features {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border);
}

.section-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 1rem;
  height: 1px;
  background: var(--accent);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  border: 1px solid var(--border);
}

.feature-item {
  padding: 1.75rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}

.feature-item:hover {
  background: var(--surface);
}

@media (min-width: 700px) {
  .feature-grid { grid-template-columns: repeat(3, 1fr); }
  .feature-item:nth-child(3n) { border-right: none; }
  .feature-item:nth-last-child(-n+3) { border-bottom: none; }
}

.feature-num {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
  letter-spacing: 0.08em;
}

.feature-item h3 {
  font-family: var(--display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-hi);
  margin-bottom: 0.5rem;
}

.feature-item p {
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--text);
  line-height: 1.7;
}

/* ── About / Data & Privacy ───────────────────────────────────────────────── */

.about {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}

.about-item {
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.about-item h3 {
  font-family: var(--display);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-hi);
  margin-bottom: 0.75rem;
}

.about-item p {
  font-size: 0.83rem;
  font-weight: 300;
  color: var(--text);
  line-height: 1.75;
}

.about-item a { color: var(--accent); }

/* ── Download ─────────────────────────────────────────────────────────────── */

.download {
  padding: 5rem 0;
}

.download h2 {
  font-family: var(--display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text-hi);
  margin-bottom: 0.6rem;
}

.download p {
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--text);
  margin-bottom: 2rem;
}

.download-note {
  margin-top: 1rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.download-legal {
  margin-top: 0.75rem;
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--muted);
}

.download-legal a { color: var(--accent); }
  margin-top: 2.5rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--border-hi);
  border-radius: var(--radius);
  font-size: 0.83rem;
  font-weight: 300;
  color: var(--text);
  max-width: 500px;
  line-height: 1.8;
  background: var(--surface);
}

.donate-note a { color: var(--accent); font-weight: 500; }

/* ── Prose (privacy / terms) ──────────────────────────────────────────────── */

.prose {
  padding: 4rem 0 6rem;
}

.prose h1 {
  font-family: var(--display);
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text-hi);
  margin-bottom: 0.5rem;
}

.prose .meta {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 3rem;
  letter-spacing: 0.04em;
}

.prose h2 {
  font-family: var(--display);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 2.5rem 0 0.75rem;
}

.prose p {
  color: var(--text);
  margin-bottom: 1rem;
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 1.8;
}

.prose ul {
  margin: 0.5rem 0 1rem 1.25rem;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 1.8;
}

.prose code {
  font-family: var(--mono);
  font-size: 0.8rem;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.1em 0.4em;
  border-radius: 3px;
  color: var(--accent);
}

.prose a { color: var(--accent); }

.prose .contact-block {
  margin-top: 2.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--muted-hi);
}

.prose .contact-block a { color: var(--accent); }

/* ── Responsive nav ───────────────────────────────────────────────────────── */

@media (max-width: 600px) {
  nav ul { gap: 1rem; }
  nav ul li:nth-child(n+3) { display: none; }
  .hero { padding: 4rem 0 3.5rem; }
}